Yeah, same for me this morning.1. Console shows wierd errors with squlite, then fails to find parking position xyz2. I delete navcache, sometimes, it regens automatically, others it still crashes, like it is not told to regen3. If it doesn't I rename flightgear.org to flightgear.org.bak, run flightgear, close once I get into the cockpit, and put my stuff (export, autosave, aircrft saved settings etc) aback in, leaving fgfs.pid the two logs, and he old navcache out.

Unfortunately, the NavCache feature has become kinda infamous for rendering FG unusable for a number of folks, especially Windows users - even though it is a great feature/idea in theory, but we're really getting too little constructive feedback to help narrow down what is going on here, i.e. in terms of corrupted tables, but also the navcache taking ages to rebuild.